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de Alvear Cardenas, J.I. (author), de Visser, C.C. (author)Online fault detection and diagnosis (FDD) enables Unmanned Aerial Vehicles (UAVs) to take informed decisions upon actuator failure during flight, adapting their control strategy or deploying emergency systems. Despite the camera being a ubiquitous sensor on-board of most commercial UAVs, it has not been used within FDD systems before, mainly...conference paper 2024
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Gomez Ortega, A. (author), Bourgeois, Jacky (author), Kortuem, G.W. (author)Most people interact with digital technologies that collect personal data about their behavior and experiences, leaving behind a data trail. The data within this trail is abstract and difficult to interpret; still, people often need to decide about its collection and distribution. Hence, it is paramount to support personal data literacy, for...conference paper 2024
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Cao, Jianpeng (author), Zhang, Hang (author), Pan, Bo (author), Soman, R. K. (author), Savov, Anton (author), Hall, Daniel M. (author)Design for manufacturing and assembly (DfMA) is an engineering methodology which aims to increase ease of manufacture and efficiency of assembly by considering manufacturing and assembly constraints in the design process. However, current DfMA approaches in the construction sector are not automated enough to identify the design features that...conference paper 2024
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Krasnov, O.A. (author), Zhang, Q. (author), Yarovoy, Alexander (author)In this paper, the full calibration chain of FMCW radar with simultaneous transmission of two orthogonally polarized orthogonal waveforms is considered. Specifically for this type of polarimetric radar, compensation of signals’ biases and equalization of the amplification gains of the parallel polarimetric channels in the receiver are jointly...conference paper 2024
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Dash, T.K. (author), Driessen, J.N. (author), Krasnov, O.A. (author), Yarovoy, Alexander (author)The challenge of reconstructing the Doppler spectrum of a precipitation-like event observed by a fast-scanning weather radar is addressed. A novel method is proposed where the echo sequence in time is assumed to be a complex Gaussian process with a known covariance structure. It is a two-step approach where the first step is the estimation of...conference paper 2024
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Ahrens, B.P. (author), Matthes, Ralph (author), van der Weide, N.J. (author), Wullaert, K.F. (author)We present a formalization of different categorical structures used to interpret linear logic. Our formalization takes place in UniMath, a library of univalent mathematics based on the Coq proof assistant. All the categorical structures we formalize are based on monoidal categories. As such, one of our contributions is a practical, usable...conference paper 2024
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van der Weide, N.J. (author), Rasekh, Nima (author), Ahrens, B.P. (author), North, P.R. (author)Category theory is a branch of mathematics that provides a formal framework for understanding the relationship between mathematical structures. To this end, a category not only incorporates the data of the desired objects, but also "morphisms", which capture how different objects interact with each other. Category theory has found many...conference paper 2024
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Wuite, F.G.E. (author), Peng, Zhikai (author), Kim, K.J. (author), Lugten, M.C. (author), Tenpierik, M.J. (author)This study aims to evaluate the impact of different urban building geometries (six courtyards, two canyons, two slabs) on heat mitigation and aircraft noise attenuation, in order to support an evidence-based retrofit plan for future airport neighborhoods. Using ’Pachyderm + ENVI-met simulations + field measurements’, we found that the slanted...conference paper 2024
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Forouzandeh Shahraki, N. (author), Brembilla, E. (author), Stoter, J.E. (author), Nan, L. (author)3D modeling of indoor spaces is a prerequisite for daylight simulation, and the accuracy of the 3D models has a significant impact on the simulation. The goal of this study was to quantify the errors caused by modeling indoor spaces at different accuracy levels to find the optimal balance between the reliability of the results and labor...conference paper 2024
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Van Rheenen, E.S. (author), Padding, J.T. (author), Visser, K. (author)Hydrogen carriers are attractive alternative fuels for the shipping sectors. They are zero-emission, have high energy densities, and are safe, available, and easy to handle. Sodium borohydride, potassium borohydride, dibenzyltoluene, n-ethylcarbazole, and ammoniaborane are interesting hydrogen carriers, with high theoretical energy densities....conference paper 2024
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Kim, K.J. (author), Lugten, M.C. (author), Wuite, F.G.E. (author), Peng, Zhikai (author), Tenpierik, M.J. (author)Analyzing the impact of aircraft noise on urban areas requires specific consideration of sound propagation over long distances, which is not typically covered by tools designed for indoor acoustics. Although it is unclear to what extent existing parametric tools that combine 3D modeling and acoustic simulation can accurately replicate these...conference paper 2024
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Brembilla, E. (author), Wang, Taoning (author), Theodoropoulou, Panagiota (author), Beck, Wouter (author)The presence of sensor networks to monitor environmental conditions and the automation of blinds and lighting systems controls is now commonplace in buildings, especially public ones with a high number of occupants. However, implementing control algorithms that are sufficiently reactive to variable sky conditions and that actually meet...conference paper 2024
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Liu, Q. (author), Ghodrat, S. (author), Jansen, K.M.B. (author)We developed a shape-changing constructive kit, named Mimosa1. A key component of the toolkit is the modular hinges, each of which is equipped with two antagonistic shape memory alloy (SMA) wires. One wire deforms the hinge to approach its predetermined angle at high temperature, and another wire drives the hinge back when it cools down....conference paper 2024
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Shubham, Shubham (author), Avallone, F. (author), Brandetti, L. (author), Wright, Nigel (author), Ianakiev, Anton (author)This study investigates the impact of struts and a central tower on the aerodynamics and aeroacoustics of Darrieus Vertical Axis Wind Turbines (VAWTs) at chord-based Reynolds numbers of 8.12e4. A 2-bladed H-Darrieus VAWT is used, featuring a 1.5m diameter, a solidity of 0.1 and a blade cross-section of symmetrical NACA 0021. The turbine design...conference paper 2024
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Yong, Wen Pin (author), Menke, Hannah (author), Maes, Julien (author), Geiger, S. (author), Bakar, Zainol Affendi Abu (author), Lewis, Helen (author), Buckman, Jim (author), Bonnin, Anne (author), Singh, Kamaljit (author)Microporosity is commonly assumed to be non-connected porosity and not commonly studied in geoengineering industry. However, the presence of micropores plays a key role in connecting macropores and it can contribute significantly to the overall flow performance. In this study, targeted CO<sub>2</sub> storage carbonate fields in Southeast Asia...conference paper 2024
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Mattioli, F. (author), Figoli, Fabio (author), Stappers, P.J. (author)As design research matures, more designers pursue a PhD. In its turn, the PhD itself is changing from a solitary preparation for a career in academia toward an increasing emphasis on interdisciplinary and international experience and a greater variety of jobs. These developments call for greater opportunities for PhD candidates to build their...conference paper 2024
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Frascara, Jorge (author), Gardien, Paul (author), Noël, Guillermina (author), Rosenberg, Daniel (author), Stappers, P.J. (author), Wilde, Danielle (author)Design skills and methods have been at the conceptual foundation of the design discipline(s) for at least the past half century. Over this period, design has also changed, focusing on new outcomes, serving new goals, and addressing different scales and broader application areas. On the one hand, there is a large set of methods and tools; on the...conference paper 2024
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Procaccini, Marco (author), Sahebi, Amin (author), Barbone, Marco (author), Luk, Wayne (author), Gaydadjiev, G. (author), Giorgi, Roberto (author)Processing graphs on a large scale presents a range of difficulties, including irregular memory access patterns, device memory limitations, and the need for effective partitioning in distributed systems, all of which can lead to performance problems on traditional architectures such as CPUs and GPUs. To address these challenges, recent...conference paper 2024
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Dupont, Samuel (author), Kastelik, Jean-Claude (author), Vanhamel, J. (author), Dekemper, Emmanuel (author)Diffraction of optical waves by an acoustic grating is a well-known phenomenon that enables the design of very versatile devices useful in photonic systems. For example, Acousto-Optic Tuneable Filters (AOTFs) can be dynamically tuned by radio-frequency signals. Among possible material choice, tellurium dioxide crystal is often used for practical...conference paper 2024
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Mo, J. (author), Schaffar, Gerald J.K. (author), Du, L. (author), Maier-Kiener, Verena (author), Kiener, Daniel (author), Vollebregt, S. (author), Zhang, Kouchi (author)Silicon carbide (SiC) coated vertically aligned carbon nanotubes (VACNT) are attractive material for fabricating MEMS devices as an alternative for bulk micromachining of SiC. In order to examine the mechanical properties of SiC-CNT composites at high temperatures, we fabricated VACNT micro-pillars with different amounts of SiC coating and...conference paper 2024